Fig. 2From: Bronchiolar adenoma with diffuse pulmonary nodules: a extremely rare case report and review of literatureHematoxylin-and-eosin-stained sections of lung masses. a Irregular glands grew in a significant inflammatory background. b Micropapillae were occasionally formed by nonciliated cells (such as type II alveolar cells and club cells). c Ciliated columnar cells were identified occasionally. d Irregular glands, similar to adenocarcinoma, with a double cellular structureBack to article page